“I’ve caught passengers taking other people’s luggage out of the bin to make room for their own bags,” she says. “I’m not joking. They’ll pull out a bag, drop it on the floor and walk away leaving it in the middle of the aisle for the passengers behind them to crawl over.”

Though travelers have always stuffed monster bags into pint-sized spaces, Poole notes that the practice as well as the bizarre bad behavior has become more prevalent since the onset of $25 baggage fees, the first unbundling move.